Which integrations are available for this server?

Provides tools for creating x402 payment requests and verifying USDC payments on the Solana blockchain, enabling micropayments between AI agents.

How do I use x402 Payment Gateway MCP Server?

1. Click on "Install Server". 2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state. 3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@x402 Payment Gateway MCP Server Create a payment request for the premium data analysis tool costing 0.5 USDC." That's it! The server will respond to your query, and you can continue using it as needed. Here is a step-by-step guide with screenshots.

x402 Payment Gateway MCP Server 💰

MCP Server that enables micropayments between AI agents using USDC on Solana. Based on the x402 protocol (HTTP 402 Payment Required).

What is x402?

x402 is a protocol that lets AI agents pay for services automatically. When an agent calls a premium tool, it gets a "402 Payment Required" response with payment instructions. The agent pays via blockchain, then gets access.

Related MCP server: x402 MCP Payment

Features

Payment Requests — Create x402-compatible payment requests for any tool
On-Chain Verification — Verify USDC payments directly on Solana
Tool Pricing — Set per-call prices for individual tools
Revenue Tracking — Dashboard with total revenue, per-tool breakdown
Payment History — Full audit trail of all transactions

Installation

pip install x402-mcp-server

Configuration

Set your merchant wallet in .env:

MERCHANT_WALLET=YourSolanaWalletAddress
SOLANA_RPC_URL=https://api.mainnet-beta.solana.com

Usage with Claude Code

{
  "mcpServers": {
    "x402": {
      "command": "uvx",
      "args": ["x402-mcp-server"],
      "env": {
        "MERCHANT_WALLET": "YourSolanaWalletAddress"
      }
    }
  }
}

Tools

Tool	Description
`create_payment_request`	Create a 402 payment request for a tool
`verify_payment`	Verify on-chain USDC payment
`get_payment_status`	Check payment status
`set_tool_price`	Set price for a tool
`get_price_list`	View all tool prices
`list_payments`	Payment history
`get_revenue`	Revenue statistics

Flow

Agent A                    x402 Gateway                 Agent B (Service)
   |                           |                             |
   |-- "Use premium tool" ---->|                             |
   |                           |-- 402 Payment Required ---->|
   |<-- Payment instructions --|                             |
   |                           |                             |
   |-- USDC payment on-chain ->|                             |
   |                           |-- verify_payment ---------->|
   |                           |<-- verified ----------------|
   |<-- Access granted --------|                             |

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License

MIT

This server cannot be installed

A

license - permissive license

-

quality - not tested

D

maintenance

How are these scores calculated?

Maintenance

–Maintainers

–Response time

–Release cycle

–Releases (12mo)

Commit activity

Resources

GitHub Repository

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x402 Payment Gateway MCP Server